|  | 1.3 |
The Data Link Layer of the OSI Reference Model
| 1.3.2 |
Data transport across the physical link connecting hosts, routers, and other devices
The Ethernet and 802.3 data links provide data transport across the physical link joining two devices. For example, the three devices can be directly attached to each other over the Ethernet LAN. The Apple Macintosh on the left and the Intel-based PC in the middle show MAC addresses used by the data link layer. The router on the right also uses MAC addresses for each of its LAN-side interfaces.
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| Lower OSI Layers
| IEEE 802 Standards